Wednesday assorted links by Tyler Cowen December 27, 2017 at 12:10 pm in 1. Gwern on sunk costs. And when should I check the mail? 2. “People from whom I have heard an interesting theory this year.” 3. Joshua Rothman on Victor Davis Hanson on WWII. 4. Dan Klein reviews The Last Jedi. 5. 2017 was mostly a good year.